| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |
| #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |
| #pragma once |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "content/browser/geolocation/device_data_provider.h" |
| #include "content/common/content_export.h" |
| #include "content/public/common/url_fetcher_delegate.h" |
| #include "googleurl/src/gurl.h" |
| |
| struct Geoposition; |
| class URLFetcher; |
| |
| namespace net { |
| class URLRequestContextGetter; |
| } |
| |
| // Takes a set of device data and sends it to a server to get a position fix. |
| // It performs formatting of the request and interpretation of the response. |
| class NetworkLocationRequest : private content::URLFetcherDelegate { |
| public: |
| // ID passed to URLFetcher::Create(). Used for testing. |
| CONTENT_EXPORT static int url_fetcher_id_for_tests; |
| // Interface for receiving callbacks from a NetworkLocationRequest object. |
| class ListenerInterface { |
| public: |
| // Updates the listener with a new position. server_error indicates whether |
| // was a server or network error - either no response or a 500 error code. |
| virtual void LocationResponseAvailable( |
| const Geoposition& position, |
| bool server_error, |
| const string16& access_token, |
| const RadioData& radio_data, |
| const WifiData& wifi_data) = 0; |
| |
| protected: |
| virtual ~ListenerInterface() {} |
| }; |
| |
| // |url| is the server address to which the request wil be sent. |
| NetworkLocationRequest(net::URLRequestContextGetter* context, |
| const GURL& url, |
| ListenerInterface* listener); |
| virtual ~NetworkLocationRequest(); |
| |
| // Makes a new request. Returns true if the new request was successfully |
| // started. In all cases, any currently pending request will be canceled. |
| bool MakeRequest(const std::string& host, |
| const string16& access_token, |
| const RadioData& radio_data, |
| const WifiData& wifi_data, |
| const base::Time& timestamp); |
| |
| bool is_request_pending() const { return url_fetcher_ != NULL; } |
| const GURL& url() const { return url_; } |
| |
| private: |
| // content::URLFetcherDelegate |
| virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE; |
| |
| scoped_refptr<net::URLRequestContextGetter> url_context_; |
| ListenerInterface* listener_; |
| const GURL url_; |
| scoped_ptr<content::URLFetcher> url_fetcher_; |
| |
| // Keep a copy of the data sent in the request, so we can refer back to it |
| // when the response arrives. |
| RadioData radio_data_; |
| WifiData wifi_data_; |
| base::Time timestamp_; // Timestamp of the above data, not of the request. |
| |
| DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest); |
| }; |
| |
| #endif // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ |